84 lines
2.8 KiB
Plaintext
84 lines
2.8 KiB
Plaintext
/*
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* Copyright 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#import "RTCVideoRendererAdapter+Private.h"
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#import "RTCVideoFrame+Private.h"
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#include <memory>
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#include "webrtc/media/engine/webrtcvideoframe.h"
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namespace webrtc {
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class VideoRendererAdapter
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: public rtc::VideoSinkInterface<cricket::VideoFrame> {
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public:
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VideoRendererAdapter(RTCVideoRendererAdapter* adapter) {
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adapter_ = adapter;
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size_ = CGSizeZero;
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}
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void OnFrame(const cricket::VideoFrame& nativeVideoFrame) override {
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RTCVideoFrame *videoFrame = nil;
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// Rotation of native handles is unsupported right now. Convert to CPU
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// I420 buffer for rotation before calling the rotation method otherwise
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// it will hit a DCHECK.
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if (nativeVideoFrame.rotation() != webrtc::kVideoRotation_0 &&
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nativeVideoFrame.video_frame_buffer()->native_handle()) {
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rtc::scoped_refptr<webrtc::VideoFrameBuffer> i420Buffer =
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nativeVideoFrame.video_frame_buffer()->NativeToI420Buffer();
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std::unique_ptr<cricket::VideoFrame> cpuFrame(
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new cricket::WebRtcVideoFrame(i420Buffer,
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nativeVideoFrame.rotation(),
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nativeVideoFrame.timestamp_us()));
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const cricket::VideoFrame *rotatedFrame =
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cpuFrame->GetCopyWithRotationApplied();
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videoFrame = [[RTCVideoFrame alloc] initWithNativeFrame:rotatedFrame];
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} else {
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const cricket::VideoFrame *rotatedFrame =
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nativeVideoFrame.GetCopyWithRotationApplied();
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videoFrame = [[RTCVideoFrame alloc] initWithNativeFrame:rotatedFrame];
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}
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CGSize current_size = CGSizeMake(videoFrame.width, videoFrame.height);
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if (!CGSizeEqualToSize(size_, current_size)) {
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size_ = current_size;
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[adapter_.videoRenderer setSize:size_];
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}
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[adapter_.videoRenderer renderFrame:videoFrame];
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}
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private:
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__weak RTCVideoRendererAdapter *adapter_;
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CGSize size_;
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};
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}
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@implementation RTCVideoRendererAdapter {
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std::unique_ptr<webrtc::VideoRendererAdapter> _adapter;
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}
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@synthesize videoRenderer = _videoRenderer;
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- (instancetype)initWithNativeRenderer:(id<RTCVideoRenderer>)videoRenderer {
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NSParameterAssert(videoRenderer);
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if (self = [super init]) {
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_videoRenderer = videoRenderer;
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_adapter.reset(new webrtc::VideoRendererAdapter(self));
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}
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return self;
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}
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- (rtc::VideoSinkInterface<cricket::VideoFrame> *)nativeVideoRenderer {
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return _adapter.get();
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}
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@end
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